从农场动物及其环境中分离出的嗜温气单胞菌属物种中毒力因子的发生率。
The incidence of virulence factors in mesophilic Aeromonas species isolated from farm animals and their environment.
作者信息
Gray S J, Stickler D J, Bryant T N
机构信息
Public Health Laboratory Service, University Hospital of Wales, Heath Park, Cardiff.
出版信息
Epidemiol Infect. 1990 Oct;105(2):277-94. doi: 10.1017/s0950268800047889.
Abstract
Sixty-one isolates of Aeromonas spp. from the faeces of pigs, cows and a variety of associated environmental sources were examined for the characteristics that are reputed to have roles in pathogenicity. Most isolates of Aeromonas hydrophila were cytotoxic (96.4%) and were capable of producing cell elongation factor (75%) and haemagglutinins (67.9%). In contrast few of the Aeromonas caviae isolates produced these three markers (13.6%, 27.3% and 36.4% respectively). In general, Aeromonas sobria occupied an intermediate position (36.4%, 27.3% and 54.5%), but they did produce the highest mean invasion index for HEp-2 cells. Statistical analysis revealed significant associations between the carriage of these factors and it was clear that many isolates of aeromonads from water and animals possessed the full battery of putative virulence factors.
摘要
对从猪、牛粪便以及各种相关环境来源中分离出的61株气单胞菌进行了检查，以确定那些被认为在致病性方面起作用的特征。大多数嗜水气单胞菌分离株具有细胞毒性（96.4%），能够产生细胞伸长因子（75%）和血凝素（67.9%）。相比之下，豚鼠气单胞菌分离株中很少有产生这三种标志物的（分别为13.6%、27.3%和36.4%）。一般来说，温和气单胞菌处于中间位置（36.4%、27.3%和54.5%），但它们对HEp-2细胞产生的平均侵袭指数最高。统计分析显示这些因素的携带之间存在显著关联，很明显，来自水和动物的许多气单胞菌分离株拥有全套假定的毒力因子。
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